2022A&A...658A.178S

Query : 2022A&A...658A.178S

2022A&A...658A.178S - Astronomy and Astrophysics, volume 658A, 178-178 (2022/2-1)

The APEX Large CO Heterodyne Orion Legacy Survey (ALCOHOLS). I. Survey overview.

STANKE T., ARCE H.G., BALLY J., BERGMAN P., CARPENTER J., DAVIS C.J., DENT W., DI FRANCESCO J., EISLOFFEL J., FROEBRICH D., GINSBURG A., HEYER M., JOHNSTONE D., MARDONES D., McCAUGHREAN M.J., MEGEATH S.T., NAKAMURA F., SMITH M.D., STUTZ A., TATEMATSU K., WALKER C., WILLIAMS J.P., ZINNECKER H., SWIFT B.J., KULESA C., PETERS B., DUFFY B., KLOOSTERMAN J., YILDIZ U.A., PINEDA J.L., DE BREUCK C. and KLEIN T.

Abstract (from CDS):


Context. The Orion molecular cloud complex harbours the nearest Giant Molecular Clouds (GMCs) and the nearest site of high-mass star formation. Its young star and protostar populations are thoroughly characterized. The region is therefore a prime target for the study of star formation.
Aims. Here, we verify the performance of the SuperCAM 64 pixel heterodyne array on the Atacama Pathfinder Experiment (APEX). We give a descriptive overview of a set of wide-field CO(3-2) spectral line cubes obtained towards the Orion GMC complex, aimed at characterizing the dynamics and structure of the extended molecular gas in diverse regions of the clouds, ranging from very active sites of clustered star formation in Orion B to comparatively quiet regions in southern Orion A. In a future publication, we will characterize the full population of protostellar outflows and their feedback over an entire GMC.
Methods. We present a 2.7 square degree (130 pc2) mapping survey in the 12CO(3-2) transition, obtained using SuperCAM on APEX at an angular resolution of 19'' (7600 AU or 0.037 pc at a distance of 400 pc), covering the main sites of star formation in the Orion B cloud (L 1622, NGC 2071, NGC 2068, Ori B9, NGC 2024, and NGC 2023), and a large patch in the southern part of the L 1641 cloud in Orion A.
Results. We describe CO integrated line emission and line moment maps and position-velocity diagrams for all survey fields and discuss a few sub-regions in some detail. Evidence for expanding bubbles is seen with lines splitting into double components, often in areas of optical nebulosities, most prominently in the NGC 2024 HII region, where we argue that the bulk of the molecular gas is in the foreground of the HII region. High CO(3-2)/CO(1-0) line ratios reveal warm CO along the western edge of the Orion B cloud in the NGC 2023 & NGC 2024 region facing the IC 434 HII region. We see multiple, well separated radial velocity cloud components towards several fields and propose that L 1641-S consists of a sequence of clouds at increasingly larger distances. We find a small, seemingly spherical cloud, which we term "Cow Nebula" globule, north of NGC 2071. We confirm that we can trace high velocity line wings out to the "extremely high velocity" regime in protostellar molecular outflows for the NGC 2071-IR outflow and the NGC 2024 CO jet, and identify the protostellar dust core FIR4 (rather than FIR5) as the true driving source of the NGC 2024 monopolar outflow.

Abstract Copyright: © ESO 2022

Journal keyword(s): ISM: clouds - ISM: kinematics and dynamics - ISM: structure - ISM: bubbles - ISM: jets and outflows - submillimeter: ISM

Simbad objects: 53

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Number of rows : 53
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 NAME OMC-1 MoC 05 35 14 -05 22.4           ~ 1168 2
2 NAME Orion-KL SFR 05 35 14.16 -05 22 21.5           ~ 2292 1
3 M 42 HII 05 35 17 -05 23.4           ~ 4073 0
4 NAME Ori Region reg 05 35 17.30 -05 23 28.0           ~ 579 0
5 NAME Ori Complex Cld 05 35.3 -05 23           ~ 441 0
6 OMC 3 MoC 05 35 20.0 -05 01 00           ~ 272 1
7 OMC 2 MoC 05 35 27 -05 10.1           ~ 449 1
8 OMC 4 MoC 05 36 06 -05 35.7           ~ 70 0
9 NAME LDN 1641 North HII 05 36 17.6 -06 22 10           ~ 238 0
10 NAME LDN 1641N Cluster Cl* 05 36 19 -06 22.2           ~ 9 0
11 [DE95] LDN 1641N C PoC 05 36 19.1 -06 22 14           ~ 2 0
12 NAME HH 1-2 HH 05 36 22.8 -06 46 03           ~ 208 1
13 NAME Ori A MoC 05 38 -07.1           ~ 3008 0
14 * sig Ori Y*O 05 38 44.7653828520 -02 36 00.283179888 2.54 3.58 3.79 3.87 4.11 O9.5V+B0.2V(n) 801 0
15 NAME LDN 1641C Cluster Cl* 05 38 49.6 -07 01 32           ~ 5 0
16 LDN 1641 MoC 05 39.0 -07 00           ~ 479 0
17 NAME LDN 1641 South DNe 05 40 27.6 -07 27 28           ~ 59 1
18 NAME Horsehead Nebula DNe 05 40 59.0 -02 27 30           ~ 510 0
19 IC 434 HII 05 41 -02.5           ~ 89 1
20 HGBS J054125.2-021807 Y*O 05 41 24.930 -02 18 06.75           ~ 38 0
21 NGC 2023 RNe 05 41 37.9 -02 15 52           ~ 635 1
22 [MCK88] NGC 2024 FIR 1 FIR 05 41 41.40 -01 53 47.0           ~ 36 0
23 NAME Ori B MoC 05 41 43.0 -01 54 44           ~ 1375 0
24 NGC 2024 Cl* 05 41 43 -01 50.5           ~ 1154 1
25 [MCK88] NGC 2024 FIR 4 Y*O 05 41 44.00 -01 54 42.0           ~ 55 0
26 2MASS J05414404-0154444 Y*O 05 41 44.047 -01 54 44.42           ~ 12 0
27 [BCB89] IRS 3 Y*O 05 41 44.4045095712 -01 55 23.095022772           M1.9 24 0
28 [MCK88] NGC 2024 FIR 5 cor 05 41 44.6 -01 55 38           ~ 93 0
29 [MCK88] NGC 2024 FIR 6 IR 05 41 45.00 -01 56 01.0           ~ 55 0
30 [BCB89] IRS 2b Y*O 05 41 45.490 -01 54 28.78           O8V 49 1
31 NAME Ori B9 Cloud Cld 05 42 30.5 -01 20 33           ~ 23 0
32 [MHH2009c] SMM 7 smm 05 43 22.1 -01 13 46           ~ 7 0
33 HH 212 HH 05 43 51.41 -01 02 53.1           ~ 391 1
34 IRAS 05413-0104 IR 05 43 51.5 -01 02 52           ~ 81 0
35 HH 26 HH 05 46 05.1 -00 14 17           ~ 100 1
36 HH 24 HH 05 46 09 -00 10.2           ~ 160 1
37 M 78 RNe 05 46 45.8 +00 04 45   8.0       ~ 375 0
38 [B77] 100 GNe 05 47.0 +00 39           ~ 3 0
39 NAME NGC 2071 IR SFR 05 47 04.4 +00 21 49           ~ 70 0
40 HD 290857 SB* 05 47 05.4093114048 +00 38 20.600433960   10.52 10.13     F8 5 0
41 NAME NGC 2071 IR Cluster Cl* 05 47 07 +00 17.6           ~ 3 0
42 NGC 2071 RNe 05 47 10 +00 18.0           ~ 645 1
43 LBN 933 RNe 05 47.4 +00 43           ~ 6 0
44 LDN 1617 DNe 05 51 46 +02 48.5           ~ 60 0
45 HD 288313 Or* 05 54 02.9907527336 +01 40 21.814523504   10.98 9.95 9.72 9.55 K2V 32 1
46 HGBS J055411.9+014237 Y*O 05 54 12.34 +01 42 35.5           ~ 12 0
47 HH 962 HH 05 54 21.8 +01 44 01           ~ 3 0
48 HGBS J055424.3+014422 Y*O 05 54 24.25 +01 44 19.4           ~ 14 0
49 LDN 1622 DNe 05 54 28 +01 48.2           ~ 104 0
50 HH 122 HH 05 54 41.3 +01 43 56           ~ 7 0
51 NAME Orion Molecular Cloud MoC 05 56 -01.8           ~ 1098 1
52 [CPA2006] N131 bub 19 52 21.0 +26 20 54           ~ 14 0
53 NAME Gould Belt PoG ~ ~           ~ 873 1

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